@mixin index{
  display: flex;
  flex-wrap: wrap;
}
@mixin index-div{
  width: calc(20% - 16px);
  cursor: pointer;
  margin: 12px 8px;
  height: 350px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 5px;
}
